Strainer.



No. 755,352. PATENTED MAR. 22, 1904.

P. G. BROWN.

STRAINER. APPLICATION FILED SEPT. 10, 1903.

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UNITED STATES Patented March 22, 1904.

PATENT ()rrrcn.

STRAlNER.

SPECIFICATION forming part of Letters Patent No. 755,352, dated March 22, 1904.

Application filed September 10, 1903. Serial Ila- 172,592. (No model.)

To all whom it may concern:

Be it known that I, FRANCIS GRovER BROWN, a citizen of the United States, and a resident of Sheflield, in the county of Colbert and State of Alabama, have invented a new and Improved Strainer, of which the following is a full, clear, and exact description.

The invention relates to strainers such as shown and described in the application for Letters Patent of the United States, Serial No. 137,864:, filed by me' January 5, 1903, and

allowed March 11, 1903.

The object of the present invention is to provide a new and improved strainer, more I 5 especially designed for use in vertical waterfeed pipes for locomotives and other machines and devices and arranged to properly strain the water or other liquid flowing through the feed-pipe and to allow of readily cleaning the strainer of the accumulated or detained trash or other impurities.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate cor- 3 responding parts in both views.

Figure 1 is a sectional side elevation of the improvement, and Fig. 2- is a perspective view of the cylindrical strainer.

The strainer-casing A, as shown, is connected at its inlet end A by a pipe B with a three-way valve C, connected with the inletpipe D of the pipe-line, and the said three way valve 0 is provided with a blow-off pipe E for discharging the trash and other im 4 purities from the strainer, whenever it is desired to clean the same, as hereinafter more fully described.

In the strainer-casing A is held a cylindrical strainer F, opening at one end into the inlet end A, and the other end of the said strainer F is closed by a cap A screwing in the casing A and forming a support for the said strainer F. The perforated wall of the strainer F opens into an annular chamber A formed in 5 the casing A and connected with the outlet end A of the strainer-casing, and from this end A leads the outlet-pipe of the pipeline.

The cylindrical strainer F is preferably provided at its ends with exterior bands F and F?, 5 5 of which the band F is seated on a seat A, formed in the strainer-casing A, adjacent to the inlet end A, and the other band F fits snugly into the cap A so that the strainer-Wall is spaced from the wall of the casing A, and hence forms the annular chamber A As shown in Fig. 1, the strainer is interposed in the pipes D and D of the pipe-line, and the said pipes extend in a straight line, while the strainer F stands at an angle to the pipe-line, so that the 5 water entering the casing at the inlet A by way of the three-way valve C and pipe B flows into the interior of the strainer F, by way of the open end thereof, to then filter through the meshes of the strainer wall into the annular 7 chamber A from which the water passes to the pipe I) and to the boiler or other place of discharge. It is evident that trash and other impurities carried along by the water are retained by the strainer F, and consequently the water passes in apuritied state to the pipe D and to the boiler or other place in which the water is to be used. Now whenever it is desired to clean the strainer F of the accumulated trash and other impurities it is only necessary for the operator to manipulate the three-Way valve 0 so as to cut off the pipe D and to connect the pipe B with the pipe E. Steam or water is now permitted to flow in a return direction through the pipe D into the casing A, so that 5 the steam or water flows through the meshes in the Wall of the strainer F, to wash the same clear of the accumulated impurities, the water carrying the impurities along through the pipe B, three-way valve C, and pipe E to a suitable 9 place of discharge. After the strainer is cleaned the three-way valve C is turned back to its former position, (shown in Fig. 1,) so that the device is again ready for use, as above described. Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A pipe-line attachment, comprising a strainer-easing having an inlet and an outlet in alinement with each other, the casing being narrow at its inlet and gradually widening toward its outlet, and a cylindrical strainer held in the casing and having one end open and the other end closed, said strainer being held at an acute angle to the direct line leading from the inlet to the outlet with its open end opening directly over the inletof the casing, and its closed end held to one side of the outlet.

2. A pipe-line attachment, comprising a Strainer-casing having an inlet and an outlet in alinement with each other, the casing being reduced in width at its inlet end and being gradually widened toward its outlet end, an internal seat surrounding the inlet of the easing, a cylindrical strainer within said casing, said casing having an opening for the insertion of the strainer at its outlet end, at one side of its outlet-opening, and a' cap closing said strainer-opening, the cylindrical strainer having one end open and resting upon said seat surrounding theinlet of the casing, and its other end seated in said cap and closed by the top of the cap, whereby to provide a strainercasing larger at its outlet end than at its inlet end, and having its strainer held at an angle to the direct line of passage of the water through said casing.

3. A pipe-line attachment comprising a casing connected with the inlet-pipe and the outlet-pipe of a pipe-line, and a cylindrical strainer held in the said casing and provided at its ends with exterior bands, of which one is seated in a seat in the casing, adjacent to the inlet thereof, so" that the open end of the strainer opens into the inlet end of the casing, and the other band of the strainer is held in a cap on the casing, asset forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. I

FRANCIS GROVER BROWN.

Witnesses:

D. L. HARRISON, LUTHER SMITH. 

